diff options
Diffstat (limited to 'target-arm/translate-a64.c')
| -rw-r--r-- | target-arm/translate-a64.c | 211 |
1 files changed, 206 insertions, 5 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index a9c4633517..63ad787e9f 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -85,6 +85,8 @@ typedef void NeonGenWidenFn(TCGv_i64, TCGv_i32); typedef void NeonGenTwoSingleOPFn(TCGv_i32, TCGv_i32, TCGv_i32, TCGv_ptr); typedef void NeonGenTwoDoubleOPFn(TCGv_i64, TCGv_i64, TCGv_i64, TCGv_ptr); typedef void NeonGenOneOpFn(TCGv_i64, TCGv_i64); +typedef void CryptoTwoOpEnvFn(TCGv_ptr, TCGv_i32, TCGv_i32); +typedef void CryptoThreeOpEnvFn(TCGv_ptr, TCGv_i32, TCGv_i32, TCGv_i32); /* initialize TCG globals. */ void a64_translate_init(void) @@ -3774,6 +3776,54 @@ static void handle_shift_reg(DisasContext *s, tcg_temp_free_i64(tcg_shift); } +/* CRC32[BHWX], CRC32C[BHWX] */ +static void handle_crc32(DisasContext *s, + unsigned int sf, unsigned int sz, bool crc32c, + unsigned int rm, unsigned int rn, unsigned int rd) +{ + TCGv_i64 tcg_acc, tcg_val; + TCGv_i32 tcg_bytes; + + if (!arm_dc_feature(s, ARM_FEATURE_CRC) + || (sf == 1 && sz != 3) + || (sf == 0 && sz == 3)) { + unallocated_encoding(s); + return; + } + + if (sz == 3) { + tcg_val = cpu_reg(s, rm); + } else { + uint64_t mask; + switch (sz) { + case 0: + mask = 0xFF; + break; + case 1: + mask = 0xFFFF; + break; + case 2: + mask = 0xFFFFFFFF; + break; + default: + g_assert_not_reached(); + } + tcg_val = new_tmp_a64(s); + tcg_gen_andi_i64(tcg_val, cpu_reg(s, rm), mask); + } + + tcg_acc = cpu_reg(s, rn); + tcg_bytes = tcg_const_i32(1 << sz); + + if (crc32c) { + gen_helper_crc32c_64(cpu_reg(s, rd), tcg_acc, tcg_val, tcg_bytes); + } else { + gen_helper_crc32_64(cpu_reg(s, rd), tcg_acc, tcg_val, tcg_bytes); + } + + tcg_temp_free_i32(tcg_bytes); +} + /* C3.5.8 Data-processing (2 source) * 31 30 29 28 21 20 16 15 10 9 5 4 0 * +----+---+---+-----------------+------+--------+------+------+ @@ -3821,8 +3871,12 @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn) case 21: case 22: case 23: /* CRC32 */ - unsupported_encoding(s, insn); + { + int sz = extract32(opcode, 0, 2); + bool crc32c = extract32(opcode, 2, 1); + handle_crc32(s, sf, sz, crc32c, rm, rn, rd); break; + } default: unallocated_encoding(s); break; @@ -8574,7 +8628,7 @@ static void disas_simd_three_reg_diff(DisasContext *s, uint32_t insn) return; } if (size == 3) { - if (!arm_dc_feature(s, ARM_FEATURE_V8_AES)) { + if (!arm_dc_feature(s, ARM_FEATURE_V8_PMULL)) { unallocated_encoding(s); return; } @@ -10497,7 +10551,55 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn) */ static void disas_crypto_aes(DisasContext *s, uint32_t insn) { - unsupported_encoding(s, insn); + int size = extract32(insn, 22, 2); + int opcode = extract32(insn, 12, 5); + int rn = extract32(insn, 5, 5); + int rd = extract32(insn, 0, 5); + int decrypt; + TCGv_i32 tcg_rd_regno, tcg_rn_regno, tcg_decrypt; + CryptoThreeOpEnvFn *genfn; + + if (!arm_dc_feature(s, ARM_FEATURE_V8_AES) + || size != 0) { + unallocated_encoding(s); + return; + } + + switch (opcode) { + case 0x4: /* AESE */ + decrypt = 0; + genfn = gen_helper_crypto_aese; + break; + case 0x6: /* AESMC */ + decrypt = 0; + genfn = gen_helper_crypto_aesmc; + break; + case 0x5: /* AESD */ + decrypt = 1; + genfn = gen_helper_crypto_aese; + break; + case 0x7: /* AESIMC */ + decrypt = 1; + genfn = gen_helper_crypto_aesmc; + break; + default: + unallocated_encoding(s); + return; + } + + /* Note that we convert the Vx register indexes into the + * index within the vfp.regs[] array, so we can share the + * helper with the AArch32 instructions. + */ + tcg_rd_regno = tcg_const_i32(rd << 1); + tcg_rn_regno = tcg_const_i32(rn << 1); + tcg_decrypt = tcg_const_i32(decrypt); + + genfn(cpu_env, tcg_rd_regno, tcg_rn_regno, tcg_decrypt); + + tcg_temp_free_i32(tcg_rd_regno); + tcg_temp_free_i32(tcg_rn_regno); + tcg_temp_free_i32(tcg_decrypt); } /* C3.6.20 Crypto three-reg SHA @@ -10508,7 +10610,64 @@ static void disas_crypto_aes(DisasContext *s, uint32_t insn) */ static void disas_crypto_three_reg_sha(DisasContext *s, uint32_t insn) { - unsupported_encoding(s, insn); + int size = extract32(insn, 22, 2); + int opcode = extract32(insn, 12, 3); + int rm = extract32(insn, 16, 5); + int rn = extract32(insn, 5, 5); + int rd = extract32(insn, 0, 5); + CryptoThreeOpEnvFn *genfn; + TCGv_i32 tcg_rd_regno, tcg_rn_regno, tcg_rm_regno; + int feature = ARM_FEATURE_V8_SHA256; + + if (size != 0) { + unallocated_encoding(s); + return; + } + + switch (opcode) { + case 0: /* SHA1C */ + case 1: /* SHA1P */ + case 2: /* SHA1M */ + case 3: /* SHA1SU0 */ + genfn = NULL; + feature = ARM_FEATURE_V8_SHA1; + break; + case 4: /* SHA256H */ + genfn = gen_helper_crypto_sha256h; + break; + case 5: /* SHA256H2 */ + genfn = gen_helper_crypto_sha256h2; + break; + case 6: /* SHA256SU1 */ + genfn = gen_helper_crypto_sha256su1; + break; + default: + unallocated_encoding(s); + return; + } + + if (!arm_dc_feature(s, feature)) { + unallocated_encoding(s); + return; + } + + tcg_rd_regno = tcg_const_i32(rd << 1); + tcg_rn_regno = tcg_const_i32(rn << 1); + tcg_rm_regno = tcg_const_i32(rm << 1); + + if (genfn) { + genfn(cpu_env, tcg_rd_regno, tcg_rn_regno, tcg_rm_regno); + } else { + TCGv_i32 tcg_opcode = tcg_const_i32(opcode); + + gen_helper_crypto_sha1_3reg(cpu_env, tcg_rd_regno, + tcg_rn_regno, tcg_rm_regno, tcg_opcode); + tcg_temp_free_i32(tcg_opcode); + } + + tcg_temp_free_i32(tcg_rd_regno); + tcg_temp_free_i32(tcg_rn_regno); + tcg_temp_free_i32(tcg_rm_regno); } /* C3.6.21 Crypto two-reg SHA @@ -10519,7 +10678,49 @@ static void disas_crypto_three_reg_sha(DisasContext *s, uint32_t insn) */ static void disas_crypto_two_reg_sha(DisasContext *s, uint32_t insn) { - unsupported_encoding(s, insn); + int size = extract32(insn, 22, 2); + int opcode = extract32(insn, 12, 5); + int rn = extract32(insn, 5, 5); + int rd = extract32(insn, 0, 5); + CryptoTwoOpEnvFn *genfn; + int feature; + TCGv_i32 tcg_rd_regno, tcg_rn_regno; + + if (size != 0) { + unallocated_encoding(s); + return; + } + + switch (opcode) { + case 0: /* SHA1H */ + feature = ARM_FEATURE_V8_SHA1; + genfn = gen_helper_crypto_sha1h; + break; + case 1: /* SHA1SU1 */ + feature = ARM_FEATURE_V8_SHA1; + genfn = gen_helper_crypto_sha1su1; + break; + case 2: /* SHA256SU0 */ + feature = ARM_FEATURE_V8_SHA256; + genfn = gen_helper_crypto_sha256su0; + break; + default: + unallocated_encoding(s); + return; + } + + if (!arm_dc_feature(s, feature)) { + unallocated_encoding(s); + return; + } + + tcg_rd_regno = tcg_const_i32(rd << 1); + tcg_rn_regno = tcg_const_i32(rn << 1); + + genfn(cpu_env, tcg_rd_regno, tcg_rn_regno); + + tcg_temp_free_i32(tcg_rd_regno); + tcg_temp_free_i32(tcg_rn_regno); } /* C3.6 Data processing - SIMD, inc Crypto |